Kolling-mxix



C. W. HAWTHORNE.

ROLLING MILL.

APPLICATION HLED MAR. I6. ms.

1,30%,921, v Patented May (5, 1919 3 SHEETS-SHEET I.

35 INVENTOR "mama G. W. HAWTHORN. ROLL ING MILL; APPLICATION FILED MAR.i6. was.

Patented May 6, 1919,

3 SHEE'N-SHEET 2.

IN VEN T01? c. w. HAWTHORNE. ROLLING MIHLL. APPZUCATION FILED MAR. 16.we.

Patented May 6, 1919,

a SHEETS-SHEET a.

STATES CHARLES W. HAWTHORNE, OF HAMILTON, ONTARIO, CANADA, ASSIGNOR TOMORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORATIONOF MASSACHUSETTS.

ROLLING-MILL.

Patented Ma a, 1919.

Application filed March 16, 1916. Serial No. 84,579.

pass to center the rod or bar on the axis of theroll pass. The objectsand advantages of the invention will be set forth hereinafter in partand in part will be obvious herefrom, such advantages and objects beingattained by the mechanisms and instrumentalities set out in theaccompanylng claims.

The invention consists in the novel parts,

constructions, combinations and improvements here1n shown and described.

The accompanying drawings, herein re-' ferred to, and constituting apart hereof, illustrate one embodiment of the invention, and togetherwith the description serve to explain the principles thereof.

Of the drawings:

Figure 1 is a side elevation of a stand of rolls with its housing, andshowing the guide invertical longitudinal cross section;

Fig. 2 is a detail plan view of an embodiment of the guide, onan'enlarged scale;

Fig. 3 -is a section on the line 3-3 of Fig. 2;

Fig. 4 is a section on the line itf of Fig. 2; r

Fig. 5 is a detail, in elevation, of one of the halves of the guide;

Fig. 6 is a perspective viewof the guide holder; b Fi 7 is a perspectiveview of the holder- Fig. 8 is a detail plan, of larger size, of anembodiment utilizmg a clamping and releasing wedge for the guide;

Fi 9 is a vertical sectionlof Fig. S-just within the top of the guideholder, parallel to the plane of the paper ;'and

. Fig. 10 is an elevation looking at Fig. 8 from the bottom.

' Referring by way of example to the illustrated embodiment, a stand ofrolls is shown in a general way, but with much of the detail omitted.The bed-plate is indicated by l, with the housing 2 resting thereon orintegral therewith, and the cap-plate 9 resting upon the housing. Thelower roll 3 is journaled in bearing blocks 4: carried by the housings,and the upper roll 5 is journaled in bearing blocks 6 working in guidesin the housings 2, and adjustably held in position by suitable means,indicated generally by reference numeral 7. The guide is shown inposition to direct the rod or bar to be rolled into the roll pass.

One great difficulty with present guides is a failure to take or receivethe forward end of the rod or bar despite variations and deflections inits position, and at the same time to guide the rod or bar fairly andtruly through the pass. The guide of my present invention is laterallyor horizontally adjustable or positionable on the rest bar, and

in connection therewith the guide, and preferably the holder therewitare swiveled horizontally on the holder box, that is, so

that the guide while held bodily is free to move angularly horizontally.An advan tage ofthis angular or swivel movement is to prevent undue wearon the guide, and also upon the roll pass, for if the guide-be offcenter, the wear 'is thereby thrown on one side of the roll pass, therollsandlthe guides wearing most at the place where the pressure isgreatest.

The uide of the present invention will center itself on the roll passthe moment the front end of the bar or rod enters the pass. By thisinvention a great deal of time is saved in the resettin of the rolls andguides, due to the fact t at the guide does not have to be alined soaccurately to pass in adjusting the rolls and guides, and by rea son ofthe guide being self-centering, due to the swiveled or movable mounting,the bar or rod going fairly and truly through the pass.- In addition tothe advantages already 100 pointed out, it avoids or dbviates anydeformation of the cross section, and the for-. mation of minute fins orcross sectional malformations extending along the rod.

Referring to the construction as shown in 106 Figs. 1 to 7 of thedrawings, a rest bar 8 extends across from one housing to the other. Theguide holder box 10 rests upon the. bar 8, the upper surface of the restbar 8 having a guideway 11 formed therein and 110 the holder box havinga downwardly projecting guide portion 12 adapted to rest in the guideway11 while the other parts 13 of the bottom of the holder box 10 rest uponthe upper face of the rest bar 8. The holder box is positionable oradjustable along the rest bar, and is held in position by suitablemeans, such as a bolt 14, the head thereof resting in a recess 15 in theholder box 10, the bolt passing through a suitable slot in the rest bar8.

The holder box comprises a bottom 16 and side walls 17 and-18, the upperportion or top being preferably open except at the forward end thereof,the side walls preferably flaring or inclining outwardly toward the rear(see especially Figs. 2 and 4), the interior of the box being ofincreasingly greater width from the front toward the rear. The bottom ofthe holder box is preferably cut away as shown at 20, Figs. 3, 4 and 7,to decrease the wearing and frictional surface. At its forward end theholder box is provided with a top or cross piece 21.

Within the holder box is positioned and supported the guide holder 26.The guide holder 26 is shown with a .flange or out.- wardly extendingportion 27 at its forward end and with its walls 28, 29,30 and 31,extending backwardly therefrom. The side walls 29 and 31 terminaterearwardly in arcuate or rounded projections 32 and 33 shaped to fitbetween the rolls and to extend at their center inwardly to, or closelyadj acent to, the roll pass.

Means are provided for permitting an angular motion of the guide holderin the holder box in a horizontal direction, and in the embodied form ofsuch means the flange 27 is provided centrally at the top and bottomthereof with arcuate lugs 34 and 35, the arcuate lugs resting againstthe front face of the holder box (see especially Figs. 1, 2 and 3). Theguide holder is of a size to practically fill the front end of theopening or interior of the holder box, but by reason of the guide hol erbeing preferably of uniform size throughout its length and the holderbox increasing in size toward the rear, the guide holder will rockhorizontally upon the bearings 34 and 35, while the close fit at theforward end holds the guide holder in alinem'ent for the adjustedposition of the holder box. a The guide propercomprises two separate orseparable halves considered longitudinally thereof (Figs. 1, 3, 4 and5'). The halves of the guide together comprise a flaring or bellshapedmouth 40 to receive the forward end of the rod or bar. To the rear ofthese is a flange or collar 41, which collar rests against the forwardend of the guide holder. The main body 42 of the guides extendingbackwardly from the flange 41, fits snugly within the guide holder 26(see Figs. 1, 3 and 4), so

end of the bar or rod fairly and truly into,

the pass. The inner end 44 of each half of the guide is arcuate shaped,conformably to the inner end of the guide holder, to fit between therolls and to lead up closely to the roll pass.

On the finishing ass, and sometimes in other cases, it is equentlynecessary to work within close dimensions. For such work it is providedby my invention that the guide holder retains its centering and truingfunctions as above described, and alsp that the guide itself can beopened, or is permitted to be open, until the rod has entered the passand the centering or truing action has occurred, when the guide isclosed up and held firmly in the trued position.

As embodied, in Figs. 8, 9 and 10, the guide holder 50 is shown, withthe various parts thereof indicated by the reference numerals heretoforeused. The guide lies loosely therein (omitted from the figures for sakeof clearness) and alongside the guide is a sliding wedge 51. Wedge 51has a notch 52 therein in line with a slot 53 in guide holder 50. A rod54 has a bent end 55 extending through slot 53 and engages in the notch52. Rod 54 at the other-end has a yoke 56 engaging a'pin 57, which pinis on one arm of a lever 58. Lever 58 is pivoted on a suitable bearingsuch as a bracket 59 .on the roll stand housing. After the leading endof the rod has entered the pass while the guide is open or loose and t eti'uing action has taken place, the attendant throws lever 58' and theguide is then firmly held i the trued position while the rod is run thrugh the pass. It will be understood from all the foregoing that the rollass will center and aline the guide relative y to the pass. The rollingaction on the bar or rod entering the rolls brings the guide andalinement with the true line of the roll pass.

From all the foregoing it is seen that a construction has been'providedrealizing the objects and advantages herein set out, together with otherobjects and advantages which will be obvious to those skilled in theart. Itwill. be understood that changes may be made from the precisestructures shown and described within the scope of the appended claimsand without sacrificing the chief advantages of the invention.

What I claim as. my invention and desire to secure by Letters Patentis 1. The combination with the rolls and roll pass of a guide support,and an inclosing guide for the metal entering the roll pass, saidinclosing guide having angular move ment relatively to the guidesupport.-

.2. The combination with the rolls and roll the bar or rod in pass of arest bar, a guide support positionable along the rest bar and a guidefor the roll pass, said guide being horizontally angularly movable onsaid guide support during the passage of the metal therethrough.

3. The combination with the rolls and roll pass of a guide support, anda guide for the roll pass having angular movement relatively to theguide support about a point near the entering end of said guide.

4. The combination with the rolls and roll pass of a rest bar, a guidesupport positionable along the rest bar and a guide for the roll pass,said guide being horizontally angularly movable on said guide supportduring the passage of the metal therethrough about a point near theentering end of said guide. I

5. The combination with the rolls and roll pass of a rest bar, a guidesupport positionable along the rest bar and a guide for the roll pass,and a rocking vertically disposed bearing between the guide and itssupport at the center of the entering end of the guide.

6. A guiding device for a roll pass including in combination aninteriorly apertured guide, an interiorly apertured support for theguide, said support inclosing the guide closely at the forward end andloosely at its rear end, and a vertically disposed rocking bearingbetween the guide and its support at the center of its entering end.

7. The combination with the rolls and roll pass of a rest bar, a holderbox positionable along the rest bar, a guide holder adapted to rockhorizontally relatively to the holder box, and a removable guide carriedby the guide holder.

8. The combination With the rolls and roll pass of a rest bar, a holderbox positionable along the rest bar, a guide holder adapted to rockhorizontally relatively to the holder box, and a multi-part guidecarried by the guide holder.

9. The combination with the rolls and roll pass of a rest bar, a holderbox positionable along the rest bar, a guide holder removab-ly heldwithin the holder box, said guide holder being adapted to rockhorizontally relatively to the holder box, and a removable guide car- 5ried by the guide holder.

10. The combination with the rolls, and roll pass of a rest bar, aholder box positionable along the rest bar, a guide holder reniovablyheld within the holder box, said guide holder being adapted to rockhorizontally relatively to the holder box, and a multi-part removableguide carried by the guide holder.

11. The combination with the rolls and roll pass of a holder box, aguide holder adapted 0 to rock horizontally relatively to the holdervbox, a guide loosely disposed within said guide holder, and means for cosing the guide.

12. The combination with the rolls and roll 5 pass of a holder box, aguide holder adapted to rock horizontallyrelatively to the holder box, aguide loosely disposed within said guide holder, and a Wedge within theguide holder movable to cause the closing of the guide.

13. The combination with the rolls and roll pass of a holder box, aguide'holder adapted to rock horizontally relativelyto the holder box, aguide loosely disposed within said guide holder, a wedge within theguide holder movable to cause the closing of the guide and means formoving the wedge.

V 14. The combination with the rolls and roll, a. pass of a holderbox,'a guide holder adapted to rock horizontally relatively to theholder box, a guide loosely disposed within said guide holder, a wedgewithin the guide holder movable to cause the closing of the guide andmeans for moving the wedge in- $5 name to thisspecification, in thepresencepf two subscribing witnesses.

CHARLES W. HAlVTHOR-NE.

Vitnesses GEORGE J. FOULIS, J osnrrr ALLMAN.

